Natriumtripolyphosphat

Cleaning The major use for trisodium phosphate is in cleaning agents.The pH of a 1% solution is 12, and the solution is sufficiently alkaline to saponify grease and oils. In combination with surfactants, TSP is an excellent agent for cleaning everything from laundry to concrete driveways. This versatility, coupled with lack of toxicity and low manufacturing price, made TSP the preferred basis for a plethora of cleaning products sold. TSP is commonly used after cleaning with mineral spirits in order to remove hydrocarbon residues. TSP may be used with household chlorine bleach in the same solution without hazardous reactions. This mixture is particularly good for removing mildew. Although it is still the active ingredient in some toilet bowl cleaning tablets, TSP is generally not good for cleaning bathrooms, because it can corrode metal and can damage grout. Use as a Flux In the United States, trisodium phosphate is an approved flux for use in hard soldering joints in medical grade copper plumbing. The flux is applied as a concentrated water solution and dissolves copper oxides at the temperature used in copper brazing. Residues are fully water soluble and can be rinsed out of plumbing before it is put in service. TSP is used as an ingredient in fluxes designed to deoxygenate nonferrous metals for casting. TSP can be used in ceramic production to lower the flow point of glazes. Use as a Painting Enhancement TSP is still in common use for the cleaning, degreasing and deglossing of walls prior to painting. TSP breaks the gloss of oil based paints and opens the pores of latex based paint providing a surface better suited for the adhesion of the subsequent layer of paint. IndexesGrade Standards ( GB9983-88)ResoultsClassy gradeFirst gradeQualifiedAssay Na5P3O10 %≥96.090.085.095.9P2O5 % ≥5756.555.057.4Water Insoluble Matter %0.10.10.150.03Iron(Fe) %≤0.0070.0150.0300.0045PH value(1%water solution)9.2-10.09.4Particle Size5.02.1density g/cm30.57Whiteness %8575.065.090 ifany question ,please feel free to let us know.